Hand-operated wire-tying machine



P. WRIGHT.

HAND OPERATED WIRE TYING MACHINE.

. APPLICATION FILED DEC; 11 1919. 1,401,025.

Patented Dec. 20, 1921 4 SHEETS-SHEET I.

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P. WRIGHT HAND OPERATED WIRE TYING MACHINE.

APPLICATION FILED DEC I. 1919.

1,401,025. Patented Dec. 20, 1921.

4 SHEETSSHEET 2- 0 v vemtoz .70 66 M 66 7 7 Pczrvin Wight, 6y

MOW Q41 P. WRIGHT.

HAND OPERATED WIRE TYING MACHINE.

APPLICATION FILED DEC= l [919. 1,401,025. Patented Dev. 20, 1921.

4 SHEETS-SHEET 3- g fa P. WRIGHT.

HAND OPERATED WIRE TYING MACHlNE.

APPLICATION FILED DEC;I1I9I9. 1,401,025, Patented Dec. 20, 1921.

4 SHEETSSHEET 4.

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U it i s I'LLIEN'QIEL HAITD-EFERATED MAGELEFTE.

Application filled December 1,

To aZZ whom it may concern:

Be it known that l, FARVIN Vtnrorrr a citizen of the United States,residing at Chicago, in the county of (look and State of Illinois, haveinvented certain new and useful Improvements in Hand-UperatedWire-'llying Machines; and I do hereby declare the following to be afull, clear, and exactdescription of the invention, such as will enableothers skilled in the'art to which it appertains to make and use thesame.

This invention relates to improvements in hand operated wire tyingmachines, and has for itsobject-to provide a mechanism of this characterwhich will be comparatively inexpensive to manufacture and moreefficient in operation than those heretofore proposed.

"With these and other objects in view the invention consists in thenovel details of construction and combinations of parts more fullyhereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings, forming a part of thisspecification, in which like numerals designate like parts in all theviews Figure 1 is a perspective view of a machine made in accordancewith this invention;

Fig. 2 is a plan view of the parts shown in Fig. 1;

Fig. 3 is a front elevational view of'the parts shown in Fig. 2;

Fig 4; is a sectional view on the line a4 of Fig. 2, looking in thedirectionof the arrow;

Fig. 5 is a sectional view on the line 5-5 "of Fig. 2, looking in thedirection of the "ar- ,of cutter mechanism;

Specification of letters l atent.

lever 23.

1919. Serial No. ddlfitlfi.

Patented 261 19121.

Fig. 11 is a sectional view taken on the line l1-11 of Fig. 10; and

Fig. 12 is a sectional view on the iine 1242 of 'Fig. 11.

1 indicates a cast or forged framework provided with an enlarged portion2 through which passes the main-operating shaft 3. Mounted on the shaft3 and turning there with is the sleeve 1, provided with the tubularextension 5 adapted to receive the hand operated lever 6. Theenlargement 2 is provided with a circular flat protecting member 7associated with which is the main operating gear 8 carried by the shaft3. Said framework 1 is provided with a flat bottom 9. adapted to rest onthe flat top or side 10 of the box or package to be wired, and saidbottom 9 is recessed or cutaway as at 11 to receive the slotted wireholding members 12 and 13, as will be clear from Figs. 1 3 and 6.

Each of said bottom wire holding members 12 and 13 are cutaway as at 14:to accommodate the gear 8, and are also cut away; as indicated at 15, toaccommodate the pinion 16 with which said gear 8 meshes. Said bottommembers 12 and 13 are further cutaway as at 17 to accommodate the wiretwisting pinion 18, meshing with the pinion 16 and provided with thecylindrical bearings 19 and 20, as best shown in Figs. 4; and 6.

Beyond the gear 8, and parallel with the member 7, the framework isprovided with a supporting member 21, through which the reduced free endof the shaft 3 passes; and mounted on said free end is the cam 22,adapted to operate the lever 23 through the dog 24 pivoted as at 25 inone end 26 of said Said lever 23 is pivotel, as at 27. to saidsupporting member 21 and its other end 28 is suitably jointed to thereciprocating cutter bar 29, having a cutting edge 31 and moving betweenthe guides 30 with which the framework 1 is provided.

A spring 32 normally maintains said cutting edge 31 in its elevatedposition, as best shown in Fig. 5.

Said framework 1 is still further provided with a pairof bosses 35 and36 forming journals .for a wire tightening shaft 37 carrying a ratchet38, and accommodating the jaws 39 of'a lever 40 carrying a pawl as at 55to the frame 1.

41 (see Fig. 2) for operating said ratchet 38 and shaft 37. Pivoted onone end of the machine as at 45, is a wire holding latch like lever 46,having a wire receiving recess 47, as best shown in Fig. 1', which holdsthe bights 80 and 81 of the wire snugly in the twisting slots asthemachine moves or crawls over the package during the twistingoperation, "and thus insures a perfect knot.

Also pivoted to the frame-work as at 48 is a holding dog 49 having aserrated edge 50 adapted to engage one end of the wire as will appearmore fully below." Said dog 49 is provided with a cam surface 52 engagedby a cam 53 carried by the lever 54, pivoted Said lever-54 is alsoprovided with an extension or toe, 56 for a'purpose that will ,presentlyappear. A stop 60 limits the movement of lever 54 in one direction.

The bottom members 12and 13 are provided with beveled extensions 65 andwith registering slots 66 adapted to receive two overlapping. .portionsof a wire. Said slots 66 further. are adapted, when lever 6 is in itsnormal position, to register with a slot 67 with which the wire twistingpinion 18 and its extensions 19 and 20Jare provided.

70 represents a pair of strips as will be best understood from Fig. 6,which are provided with slots 71 registering with the slots 66, andconveniently secured to the bottom members 12 and 13. The slots 71 arenot so deep as are the slots 66, as will appear here inafter. 72represents a member provided with outwardly tapering slot 73 andshearing edge 74, coacting with the cutter edge 31 as will be more fullydescribed below.

I The operation of this machine is as follows :Supposing the numeral 10in the various figures to represent the top surface of a box or otherpackage around which it is deslred to secure a wire, while the latter isunder tension, or after it has been drawn tight. The machine orframe-work 1 is placed with its bottom 9 resting upon said surface 10 aindicated in the various figures. whereupon one end 81 of wire 80 isbrought beneath the serrated edges 50 of the holding dog 49 and thesucceeding portion-of the wire is slid in to the slots 71 of the strips70, the slots 66 of the members 12 and 13, and the slot 67 of the pinion18 and extensions 19 .and 20. The lever 54 is broughtinto its lowestposition, as shown in Fig. 1, whereupon its cam 53 engages the surface52 of the dog 49 and firmly clamps the extreme end 81 of the wire 80 inposition.

The said wire is also slid into the tapering slot 73 carried by themember 72, it is then further carried beneath'the shaft 37, as indicatedin dotted lines in Fig. 1, over the to surface of the box 10, downaround the si e and under the bottom thereof (not into the slot 89' ofthe shaffS shown), and up the other side into the recess 47 of the lever46. The lever 46is conveniently raised for this purpose whereupon it isthen lowered so that the said recess 47 will hold the bight 80 of thewire firmly in place. i i

The bight of the wire will'now pass parallel to the extreme end 81thereof, and outside, of said end into the first slot 71 of the strip 70carried by the bottom member 12. This said slot 71 is only of sutiicientdimensions to accommodate the two bights of the wire when the latter layflat, or in the same horizontal position. The other slot 66, however, ofthe bottom member 12is of sufficient depth to permit the wire to betwisted around itself, so that said bights could lie in the samevertical plane, as well as in the same horizontal plane.

bottom member 13, is like its companion slot 71, carried by the member12 of only sufiicient depth to accommodate the two bights of the wirewhen lying flat or in the same horizontal plane.

It results from this construction that those portions 87 of the bightsof the wire wh ch occupy the two slots 71 of the strip 70 are heldfirmly in a flatwise or horizontal position, While those portions 86 ofthe bights of the wire occupying the two slots 66 may be readilytwisted. On the other hand, the slot 67 associated with the pinion18.extends diametrically of said pinion, but is terminated at such adistance from the center of said pinion that the two bights 85 of thetwo wires (see Fig. 4) are symmetrically placed as regards the axis ofsaid pinion so that when said pinion is rotated, said bights 85 of thewire will remain in their fiatwise relative positions. .Nevertheless thesaid bights 85 will rotate around the axis of said pinion 18 while thoseportions of the wire which occupy the slots 66 will be twisted togetherand in oppositedirections, asillusas above explained. The extreme end88- of thewire, after having been brought into the positions abovementioned, and after leaving the slot 71, associated with the bottommember 13, is carried underneath the cutter edge 31 into the taperedslots 73 and i 7 as indicated in dotted lines in Fig. 1. hpffirst bightor iao meantime, the bights 87 of the twisted wire 1, 101 ,oaa

end 81 of the wire having been firmly clamped by the dog 4:9, in themanner above disclosed, and the bight 80 of the wire having been passedaround the package and the other end 88 of the wire having been passedinto the slot 89 of the shaft 87, all as above disclosed, the machinemay be conveniently grasped by the handle 90 and'thelever 10 operated toturn the ratchet 38 so as to to tate the shaft 37 and thus wind up taeend 88 of the wire bight 80 thereon. This winding action will cause themachine to move over the top of the package while putting a tensiononthe wire and by this means the wire may be drawn as tightly asdesired.

When a sufficient tension has been thus brought upon the wire. the lever6, normally lying in the position shown in Fig. 1, may now be thrownover toward the wire 80 which will rotate the gear 8, the pinion 16,andthe twisting pinion 18, whereupon the wire will be twisted in theabove manner and into the shape indicated in Fig. 7. in the having beenfirmly held in their horizontal plane, and the end 88 of the wire havingbeen passed under the cutting edge 31 of the cutter. the rotation of theshaft 3, by the lever 6, in a manner above disclosed will rotate thecam22, which will raise the end 26 of the lever 23, and lower the end 28thereof, so that the cutting edge '81 will sever only the end 88 of thewire. lln otherwords, the tapered slot 73 is only of a suiiicient' depthto permit the two bights of the wire tooc: cupy the same, in ahorizontal plane, and this limitation of the said depth causes theextreme end 88 of the wire-80 to occupy a position in the path of thecutting edge 31.

In order that the cutter 29 may pass the other bight of the wire 80, itis provided with a slot 92 as best shown in lfig. 5. The end 88 of thewire has now been severed and the wire twisted into the shape shown inFig. 7, all by a single stroke-of the lever 6, and after the finishedtie has been removed from the slot. Said lever 6, when it reached 7 itsextreme forward motion contacted with the dog 49 o ut of contact withthe toe. 9501 the lever 46, by means of its dog or member 96, and thusswung the said lever 46 on its pivot 45 and raised the recess 4.7 out ofcontact with the wire 80. The lever 54 will now be swung automaticallyinto an almost vertical pear below, whereupon its cam 53 will raise theextreme end 81 of the wire, and the machine having I a smooth'bottom maybe slid bodily away from the wire-'80 which will be found to be firmlyattached tothe boX.. The tapered portions 65 of the members 12 and 13facilitate the removal of the machine from the" wire. 1

It is an important feature of this invention that the operationsoftwisting the wire position as will apand severing its end are allreduced to a whereupon the member 96 will contact with.

-me'mber 95 to release the wire retaining hook 16, as above stated,while at the same time the shock will be absorbed by the rod 102, andthe spring 101 being compressed will permit the slotted pinion 18 to becarried beyond its normal position in register with the slots 66 and-71, and thus sufiiciently overtwist the bights 86 and 87 of the wire toallow for its natural resiliency, or

tendency to untwist. The wire being thus overtwisted will return, saidpinion to its normal position and not have a tendency to force saidpinion out of register with said other slots 66 and 71 as wouldotherwise be the case.

Another useful feature of this invention resides in the stop lug 105carried by the dog -19 for it enables the end 81 of the wire to bespaced and quickly threaded into place and clamped by the teeth 50,all'as will be clear from Figs. land 8. Still another useful feature ofmy inventionresides in the fact that the parts are so proportioned anddisposed that when the lever 6 is thrown over to perform the twistingoperation, just after I the lug 96 107 of the toe 56 of the cam lever54:, swings said lever on its dog 49 to release automatically the end 81of the wire'80.

n the somewhat modified form of wire contacts with the lug 95, the partcutting mechanism shown in Figs. 10, 11 and.

12, I provide readily detachable plates 112 and 113 having stems 114fitting holes in the flange 115 of or member 116, and I preferablyincline the extreme lower face 117 of the cutter 29 to correspond withthe inclined face 118 of anvil plate 112. The cutter 29 is guidinglyheld between the members 116 and 120 bythe bolts 121 which pass 116 and120, and into shown.

By this construction I am enabled to readily change the plates 112 and113, as Well as the butter 29, and further, I am enabled to firmly holdthe end of the severed wire between the inclined surfaces 117 and 118during the last instants of the twisting operation.

This holding of the severed wire is facilithrough said plates the framework 1, as

the tubularportion 5 contacts with pivot 55 and thus operates the" thesupporting angle plate I tated by the pivoted member 24 carried by thecutter actuating lever 23 which turns on its pivot 25 and dwells on thecam 22 during the severing operation, thus retaining the I is undertension by a single throw of lever 6, I twist the bights of the wiretogether as illustrated in Fig. 7 I sever the end 88 only of the wireand thus release it at one side I eration.

of the machine, and I automatically lift the .lever46 as well as-the dog49, and thus release said wire at the other side of the ma- .chine.

It will also be clear that the lever 46 constitutes a wire. retaining orlatch like mem-- ber, or a movable member for holding the bight 80 ofthe wire in close proximity to the end, or bight 81, of said wire duringthe twisting operation; and that the slotted strips '70 constitutemeans'forholding said two portions, or bights of the wire against aturning movement. during said twisting. op-

It is obvious that those skilled in the art may vary the details ofconstruction as well as the arrangement of parts without departingfromthe spirit of the invention, and therefore, I do not wish to be limitedto the above disclosure except as maybe required by the claims. a

What 1 claim, is

1. In a wire tying machine the combination of a frame capable ofcrawling over the package during the tying operation; means comprising amovable latch member for holding the wire in a predetermined posi-" tionin said frame; means comprising api-nion having a slot for twisting thewire. between its ends while so held; and means for cutting the heldwire at the end of the twisting operation, substantially as described.

2. lin a wire tying machine the combination of a framecapable ofcrawling over the package during the tying operation; means comprising amovable latch member for holding two portions of the wire in apredetermined position in said frame; means com- -prising a pinionhaving a slot and driven gear and connections for twisting the saidportions of the wire between its ends while so held; and meanscomprising a cam and connections for cutting the held wire during thetwisting operation, substantially as described.

' dog; wire for twisting parts of said wire together while undertension; and means operated by said shaft for cutting the wire duringthe twisting operation, substantially as .described; i

'5. In a wire tying machine capable of crawling over the package duringthe tying operation the combination of latch like means movable with themachine for holding a wire in a predetermined position; means fortightening said wire while so held; means comprising a lever, a shaftand gear connections operated by said lever for twisting parts of saidwire together while under tension; and means comprising a cam carried bysaid shaft for cutting the wire during the twisting operation,substantially as described.

6. In a wire tying machine the combination of a frame having a smoothbottom capable of crawling over the packageduring the tying operationand provided with a holding members having slots for holding twoportions of a wire against a turning movement; a latch like lever forholding the wire in said slots; a cutter carried by said frame a wiretensioning means also carried by said frame; a wire twisting means; anoperating lever; and connections whereby when said lever is operatedsaid two portions of said wire will be twisted together and one of saidportions cut 1n two, substantially as described.

7., in a wire tying machine the combination of a frame capable ofcrawling over the package during the tying operation and provided with adog and slots for holding two portions of a wire in a predeterminedposition; a latch for holding said wire in said slots; a cutter carriedby said frame; a wire tensioning means also carried by said frame; agear train comprising a slotted wire twisting member; an operatinglever;

and connections between said cutter and twisted together and one of saidportions cut in two, substantially as described.

8. In a wire tying machine the combination of means comprising aleverfor twisting two parts of a wire together; a wire retaining member; ashock absorbing means permitting an overtwist of the wire; and meanscarried by said lever for operating said wire retaining and said shockabsorbing means, substantially as described.

9. in a wire tying machine-the combination of means comprising a lever,a train a of gears operated by said lever for twisting two parts of awire together; a wire retaining member; a shock absorbing means; andmeans carried by said lever for operating said wire retaining and saidshock in absorbing means simultaneonsly substan tially as described.

10. lin a wire tying machine the combination of a frame having a smoothbottom and capable of crawling over the package "it during the tyingoperation; means comprising apinion having a single slotfor twisting twoparts ofa wire together; means comprising open ended slots for holdingtwo bights of the wire in position while being twisted together; movablemeans for holding said bights in said open ended slots; 'means fortensioning said wire before said bights are twisted; and means forcutting one of said bights at the end of the twisting operation,substantially as described.

' 11. In a wire tying-machine having a smooth bottom and adaptedtocrawlover the package being wired during the twisting operation, thecombination of means for twisting two parts of the wire together; meansmovable with the machine during the crawling operation for retainingsaid two partsof the wire in'place during the twisting and crawlingoperations; meansfor S5 tensiomng said wlre before said parts aretwisted together; means for releasingsaid retaining means; and means forcutting one of said narts at the end of the twistin g operation,substantially as described.

40, 12. In a wire tying machine the combination of a Wire clampingdevice comprising a dog, provided-with a stop lug against which one endof the wire is adapted to impinge; and means for actuating said dog,

substantially as described.

13. In a wire tying machine the combination of a wire clamping devicecomprising a dog provided with a cani surface and ,a.

stop lug against which one end ofthe wire 50. is adapted to impinge; andmeans comprising a cam lever for actuating said dog, substantially asdescribed.

14:. In a wire tying machine the combination of awire clamping devicecomprising a. dog and a cam lever to operate said dog;

a wire retainingmeans comprising a lever having a lug; a wire twistingmeans: and

an operating lever and connections adapted in a single throw of saidlever to operate said twisting means, said cam lever and dog and saidwire retaining lever, substantially as described.

15. in a wire tying machine the combination of a wire twisting means; awire clamping means; a wire retaining means; and a single'opera-tinglever for actuating at a single throw said wire twisting, wire clampingand wire retaining means, substantially as described.

16. in a wire tying machine adapted to crawl over the package to bewired during the tying operation; the combination of latch like meanscapable of moving with the machine for holding two bights of the wire ina predetermined position during said tying operation; means for twistinga portion of said two bights together; and means for automaticallycutting 0d one of said bights at the end of the twisting operation,substantially as described.

17. in a wire tying machine provided with a smooth bottom and adapted tomove over the package being wired during the twisting operation;'-thecombination of latch like means capable of holding two bights ofthe wire in a predetermined position during said twisting and movingoperations; means for twisting said two bights together; and means forautomatically cutting or? one of said bights at the end of the twisting9G operation, substantially as described.

18. in a wire tying machine the combination of atwisting means; acutting means; a supporting plate for said cutting means; a removableanvil carried .by said plate; and means for detachably attaching saidplate and cutting means to the frame of the machine, substantially asdescribed.

19. In a wire tying machine the combination of a frame having a smoothbottom; 1051 a wire cutting means carried by said frame a wire twistingmeans comprising a pinion having a single wire receiving slot; and meansforholding said cutting means in a position to hold the severed wireuntil the 108 twisting operation is completed, substantially asdescribed.

20. In a wire tying device, in combination a base adapted to crawl overthe package during the tying operation having a 110 slot for thereception side-by side of the wire ends, said slot having at its endsmeans for holding the wires against twisting. a latch capable. of movingwith the machine for holding said end in said slot, a Wire 11 5 tester,engaging the wires at the central part of said slot, twister operatingmeans including a shaft journaled upon said base,

a cutter adapted to engage and cut one of the wires just outside ofthe-wire receiving 120 slot, a cam upon said shaft and a lever carryingsaid cutter and actuated by said cam to cut the wire at the completionof the wire twisting movement.

21. In a wire tying mechanism, in com- 25 bination, a 'wire twistingmechanism adapted to crawl over the package during the twistingvoperation, wire holders located along the wire in each direction fromthe twister and adapted to prevent twisting of the wire ends about eachother, a latch movable with the machine for confining'said wires in saidholders, a wire clamp located just without one of these holders andengaging only'the 5 tip of one end of the wire, a cutter located justoutside of the other holder and adapted to engage with the other end ofthe wire only, a wire tightening clamp located beyond the cutter fromthe twister and means for connecting the twister and the cutter to 10operate the cutter at the completion of the twisting operation.

In testimony whereof I afiix my signature.

PARVIN WVRIGHT.

